Composite nanophosphor screen for detecting radiation,申请号US19970980416-传众专利搜索

Composite nanophosphor screen for detecting radiation

申请公布号：US5952665(A)

申请号：US19970980416

申请日期：1997.11.28

申请公布日期：1999.09.14

申请人：

NANOCRYSTALS TECHNOLOGY L.P.

发明人：BHARGAVA, RAMESHWAR NATH

分类号：G01T1/20;(IPC1-7):G01T1/20

主分类号：G01T1/20

摘要：A composite phosphor screen for converting radiation, such as X-rays, into visible light. The screen includes a planar surface, which can be formed from glass, silicon or metal, which has etched therein a multiplicity of closely spaced nanochannels having diameters of the order of 5 microns or less. Deposited within each of the nanochannels is a multiplicity of nanocrystalline phosphors, having diameters of less than 100 nanometers and preferably less than 10 nanometers, which emit light when acted upon by radiation. The walls of the nanochannels are arranged to reflect the light emitted by the nanophoshors down the nanochannels to suitable light collecting device such as film or an electronic device. This minimizes light scattering and increases light collection efficiency.